All characters in Diablo II move at the same speed in basic gear, but they differ as they gain bonuses from equipment and skills. Numerous skills increase walk/run speed.

Walk/run speed is normally boosted by added FRW gear; each increase is discernible, though perhaps not to the naked eye. (See breakpoints for various actions here).

Unlike attack speed or cast rate, the result of the formula is in YARDS, not FRAMES. All of the frame-based formulas have breakpoints because frames has to be a whole number (i.e. an animation can take 2 frames, or 3 frames, but it can't take 2.37 frames). There is no requirement for *YARDS* to be a whole number (i.e. you can run at 2.37 yards per second), so the formula results in no breakpoints. It's sort of like the Magic Find formula- both suffer from diminishing returns, but neither has any breakpoints. Every percentage of FR/W and Magic Find is an improvement over the percentage before. -- Source

The screen size is 640x480 or 800x600 pixels. The lower panel takes 48 pixels, leaving 640x432 pixels in the smaller screen mode and 800x552 pixels in the larger one for the game play area. Thus, the visible screen has the following proportions in yards:

Minimum walk/run speed is 1.5 yard/s (1/4 walk speed). Regardless of how chilled or slowed you are, you cannot move slower than this. Note that running speed is calculated from an unmodified walking speed and, thus, the running speed may be lower than 3 yards/s but never below 1.5 yard/s.

Charge speed has a floor of 18 yards/s. However, if speed is modified while charging then it's effectively reduced to running speed, with a floor of 1.5 yards/s.

Movement speed is affected by items, skills, armor/shield weight, and slowing effects, such as chill and slow.

Walking and running speed are modified by Faster Run/Walk (FRW) items, but charging speed is unaffected by them. Item based FRW is subject to diminishing returns. The effect of 0 % to 295 % FRW to run/walk speed is listed in the table below.

Monsters' speed bonuses are treated as skill based FRW (no diminishing returns). Note that monsters' base movement speeds vary, and thus the increase in yards/s is usually not the same as for characters.

A floor of -50% applies to the sum of Skill_FRW and Armor_Speed, so minimum Charge speed is 18 (13.5 + 9*0.5) yards/s. However, if speed is modified while charging then the Charge bonus is lost and speed is calculated as follows: